Loom.



No. 656,592. Patented Aug. 2|, |900.

H. WYYMAN.

LOOM.

(Application led Nov. 29, 1897.)

.Mme-gym l mz' uo'mus Farms co. wotmlmo.. msnmcron. u. c.

No. 656,592. Patented Aug. 2|, i900.`

` H. WYMAN.

LOOM.

(Application led Nov. 29, 1897.)

(N0 MOdGL) 4 Sheets-Sheet 2.

1m: unam: niks co. Moro-uma., wAsMmuToN. o c.

No. 656,592. .Patented Aug. 2s, |900.`

. H. wYMAN.

LOOM.

{Application led Nov. 29, 1897.)

(No Mardel.)

4 sheetssheet 3.

k Cm

ms Nbmus Ferias co.. mow-umu.. wAsHmsrou. n. c

No. 656,592. Patented Aug. 2|,v |900.

H. .WYMAN.

' lLOOM.

' (Application led Nov. 29, 1897;);

(No Model.) 4 Sheets-Sheet 4.

Amml iii.;

m: nonms Prrzns co. Puoramno.. msumcmw. D. c.

UNITED STATES PATENT OFFICEG HORACE WYMAN, OF TVORCESTER, MASSACHUSETTS,ASSIGNOR TO THE CROMPTON @E KNOWLES LOOM WORKS, OF SAME PLACE.

LOQM- SPECIFICATIGN forming part of Letters Patent No. 656,592, datedAugust 21, 1900.

Application filed November 29, 1897. Serial No. 660,095. (No model.)

Be it known that I, HORACE WYMAN, of Worcester, county of Viorcester,and State of Massachusetts, have invented an Improvementin Looms, ofwhich the following description, in connection with the accompanyingdrawings, is a specification, likeletters and iigl ures on the drawings4representing'likeparts.

This invention has for its object toimprove that class of loomdesignated under the term dobby and using movable shuttle-boxes. Ihaving combined with the usual shed-forming pattern-surface and ashuttle-box patternsurface, each employing as its indicating-surface asuitable,pattern-chain, a multiplying mechanism, it having also a chainwhereby any indicator carried by the shuttle-box pattern-surface may bemade to repeatlitself any desired number of times.

This invention, while specially applicable to a dobby-loom, as aboveindicated, is also applicable to any usual or suitable type of loomusing shed forming and shifting shuttle#` box mechanism.

On the occurrence of mispicks and other faults, which, if not corrected,would result in imperfections of the pattern, the loom isA stopped andthe pattern-surfaces must be turned by hand to again bring theirindicators at the proper points before the loom is again started. Toinsure this at one operation, I have combined with the saidpattern-surfaces and said multiplying mechanism devices whereby wheneverit is required to adjust said pattern-surfaces or multiplying mechanism,the loom being at rest7 the said patternsurfaces and multiplyingmechanism may be moved in unison, and this movement may be in eitherdirection to thereby insure the maintenance of the said surfaces andmultiplying mechanism in the established'order requisite for the correctweaving of the pattern to be produced.

One part of this invention therefore consists in combining with theshuttle-box pattern-surface a multiplying mechanism to insure therepeating ot' any desired indication of the shuttle-box pattern-surfacefor any desired number of times, the chains of the shuttle-boXpattern-surface and said multiplying mechanism being mounted, as herein4represented, on different cylinders adapted to be rotated aboutsuitable shafts, the centers of motion of said pattern-surfaces and saidmultiplying mechanism being out of line. Preferably each of saidcylinders and the shaft of the shed-forming pattern-surfaces will have asuitable hand-Wheel, whereby each of said cylinders or said shaft may bemoved independently of the other, if necessity requires, by its ownhand-wheel. The cylinders carrying the shuttle-box pattern-chain and thechain of the multiplying mechanism are sustained upon shafts held inbearings lso constructed, as will be hereinafter represented anddescribed, that either of said chains may bereadily removed from the-endof'said cyl-` inder and overits hand-wheel without dismemberingtlieChaim 'Another feature of the invention herein contained consistsincombining with said pattern-surfaces and multiplying mechanism devicesunder control of the operator whereby said pattern-surfaces andmultiplying mechanism may be turned backward orforward in unison at oneoperation and without disturbance of the predetermined set orarrangement Qt' said parts necessary to produce the particnlar patternwhich it is desired to weave `in the cloth to be produced.

In' this invention I have one and the same rotating shaft to operate theshuttle-box pattern-surface, the chain of the multiplying mechanism, andthe shed-forming patternsurface, said shaft having, however, a pluralityof worms, one of which engages a wormtoothed gearfast on a shaftcarrying the shedforming pattern-surface, said gear at each r0- tationeifecting two step-by-step movements of the said shed-formingpattern-surface to indicate the formation of two sheds, the other ofsaid worms having teeth of peculiar shape which engage the teeth of androtate two worm-toothed gears, one cooperating with each of saidcylinders, the teeth of this latter worm being so shaped or inclinedthat when one portion of said teeth engagethe teeth of one of saidtoothed gears that toothed gear will dwell or remain at rest, while theother toothed gear will be rotated, and vice versa, so that theshuttle-box pattern-surface or the chain of the multiplying mechanism,which- IOO one and then the next indicator thereon into operativeposition. The two worm-toothed gears which coperate with saidshuttle-box pattern-surface and the support for the chain of themultiplying mechanism have connected to and adapted to rotate with themeach one half of a suitable clutch device, the other cooperating half ofsuch clutch device being connected to or moving with the cylinderscarrying the shuttle-box pattern-chain and the chain of the multiplyingmechanism, each of said clutch parts being under the control of asuitable lever, preferably of the first order, said lever being moved,however, by an indicator of the other chain, so that each chain controlsthrough said levers the clutch employed to move the otherchain,andthereby eachchain may be moved whenever desired from or through theindicators of said chains, there preferably being an independent row ofindicators on each chain for the purpose of controlling these clutches,so as to stop and start either of the chains at will. The worm whichactuates the two worm-toothed gears is located between said gears andengages each of them, and these teeth of the worm are so shaped, as willbe described, that when one worm-toothed gear is at rest the other willbe moving, and vice versa; but at this same time the other worm, itengaging a Worm-toothed gear on the shaft carrying the shed-formingpattern-surface, rotates that shaft continuouslystep by step, said shafthaving a movementof two steps for one step of either the shuttle-boxpattern-surface or the chain of the multiplying mechanism. It will beunderstood thatlhe shuttle-box pattern-'surface will be moved only inthe interval in which the chain of the multiplying mechanism is at rest,and vice versa.

Figure 1 in end elevation shows a sufficient portion of a loom with myimprovements added to enable my invention to be understood,said iigureshowing but a small part of the shed-forming pattern-surface and part ofthe chain of the shuttle-box pattern-surface, the chain of themultiplying mechanism being omitted, as it is shown fully in Fig. 3.Fig. 2 is a sectional detail in the line x of Fig. 1. Fig. 3 is apartial rear side elevation and section of the parts shown in Fig. 1,the line of 'section being across the shaft on which is mounted thecylinder carrying the shuttlebox pattern surface or chain in line fr andacross the cylinder and shaft carrying the chain of the multiplyingmechanism in the line :1:2 of Fig. l, Fig. 3, however, showing saidchain in position, together with the shed-forming pattern surface orchain and two of the usual fingers of the dobby. Fig. 4 is a detailshowing the shoe at one end of the lever, located between the chain ofthe multiplying mechanism and the clutch cooperating with theshuttle-box pattern-surface. Fig. 5 is a detail showing the two leversactuated by the shuttle-box pattern surface or chain and by the chain ofthe multiplyingV mechanism to effect the stopping and starting of thecylinder carrying the pattern surface or chain of the shuttle-boxpattern-surface and the chain of the multiplying mechanism, so that anyindicator on the pattern surface or chain for the shuttle-box may berepeated any desired number of times. Fig. 6 is a partial top or planview and longitudinal section in the line :r4 of the parts shown in Fig.5. Fig. 7 is a detail showing one of the two like disks connected to oneor the other chain-carrying cylind'er and forming one of the clutchpartsof the two like clutches to be designated. Fig. 8 shows an end view ofthe fingered end of the sliding collar forming part of the other half ofone of said clutches. Fig. 9 shows part of the cylinder for supportingthe shuttle-box pattern surface or chain, said figure showing the usualindicator-rolls and by dotted lines one of the special indicatorsmovable -with said chain to indicate the stopping and starting of thecylinder moving the chain of the multiplying mechanism. Fig. 10 is asectional detail view of the cylinder carrying the chain of themultiplying mechanism, together with part of said chain, the figureshowing one of the high links which when in position to operateindicates and compels the clutching and starting of the cylindercarrying the chain ofthe shuttle-box pattern-surface. Fig. 11 isa topview of the chain shown in Fig. 10. Fig. 12 shows laid out one form ofworm for actuating the worm-toothed gears having the clutch parts andbeing instrumental in rotating the cylinders carrying the shuttle-boxpattern surface or chain and the chain of the multiplying mechanism;Fig. 13, a detail in plan showing the worm a2, the worintoothcd gearsactuated thereby, and the collars sliding on the sleeves of said gearsand for-ming parts of the clutches t-o be described, Fig. 14, a detailof the cylinder for carrying the chain of the shuttle-boxpattern-surface; Fig. 14., a detail looking at the left-hand end of Fig.14; Fig. 15, the cylinder carrying the chain of the multiplyingmechanism; and Fig. 16, an end view of a sleeve on which is Xed a worm-IOO IIO

toothed gear, said ligure showing the end of f the finger @34. Fig. 17is a longitudinal section of the parts shown in Fig. `16.

The part A of the framework herein shown is and Vmay be common, say, tothe loom represented in United States Patent No. 217,589, dated July 15,1879. In practice the shaft B may be considered to be substantially thesame as the shaft indicated in said United States Patent No. 217,589 forcarrying the shed-forming pattern surface or chain composed of parts 9l27 29, adapted to actuate fingers d6, common to the dobby mechanism,fully described in said patent, where the said chains and fingers aredesignated by like letters; but instead of said pattern surface or chaina pattern-surface of any usual or suitable construction may be made andused to actuate any other usual jacks or hooks cornnionly employed inconnection with shedforming mechanism to form sheds in the warp.

The framework A has a suitable bearing, as at A, through which isextended a shaft A2, (represented by dotted lines, Fig. 3,) said shafthaving at its inner end a large gear A4, which may be connected andactuated by any usual or suitable pinion connected with or deriving itsmotion fram the usual crankshaft of the loom, as provided for in UnitedStates Patent No. 217,539. The outer end of the shaft A2 has fast uponit a bevel-toothed pinion A5, which engages a bevel-toothed pinion A6,fast on the lower end of a short shaft A7, (shown by dotted lines inFig. 3,) said shaft having its bearings in a suitable stand or bracketA6, bolted in suitable manner to the frame A. The upper end of the shaftA7 has fast upon it a `hub of a disk B4, provided at one edge with asuitable notch to receive a tongue a, (see dotted lines, Fig. 1,)extended downwardly from a latch B6, pi voted at B6 on a disk B7,attached to a shaft Bs in line with the shaft A7, said shaft B8 beingsurrounded by a suitable spring B6, acted upon at its upperend by acollar B16, fast on said shaft B6, so that said spring normally actsupon said latch to keep its tongue in engagement with the notch in thedisk B4, said two parts of the shaft being moved together in unison byor through the gears A5 and A6 whenever the loom is Working regularly;but should the loom be stopped for any reason and it be desired torotate the part B6 of the two-part shaft B8 A7 then power appliedin thisinstance of my invention to a suitable hand-wheel C, (shown in Fig. 1,)connected to the end of a cross-shaft G, supported in the framework Aand having at one end a bevel-pinion C2, may be turned, causing saidbevel-pinion to engage a bevel-pinion `C6 on the upper end of the partB6 of said two-part shaft, and by applying sufficient force to saidshaft C the friction of the spring B9 may be overcome and the shaft B6turned, leaving the part A7 of the shaft at rest. This turning of thepart B8 of the shaft is necessary at times, as will be hereinafterstated, to enable the different pattern-surfaces and parts derivingmovement from said shaft to be rotated in unison in one or the otherdirection to correct mistakes, such as mispicks or other faultsoccurring in weaving.

\ The part B6 of the shaft is provided in this instance of my inventionwith two wormsviz., a worm and a worm @2. The worm a engages aworm-toothed gear a6 on the shaft B, before referred to, carrying theshed-forming patternchain, and rotates said shaft continuously. Theworm-gearo.2 engages a wormtoothed gear d4, (see Fig. 13,) where saidgear is shown in plan, said gear being secured to a sleeve @16, (seeFig. 17,) mounted loosely on a stud @5. (See Figs. 1, 3, and 13.) Theworm @2 rotates said Worm-toothed gear d1 and its sleeve @16intermittingly aboutsaid stud. The sleeve has iixed to its end oppositethe wormtoothed gear a plate @66, (see Fig. 16,) having a notch @61. Thesleeve @16 has mounted upon it a collar @62, having an Vannular groove@66 and a nger @64, said collar being free to be slid on said sleeve andcause said linger to move back and forth in the notch of said plate. Theworm @2 also engages a second like worm-toothed gear @65, (shown in Fig.13,) it being hid from view in Figs. 1 and 3 by the parts immediately infront of it. The gear @55 is fast on a sleeve @6, said sleeve being justthe same as sleeve @16, before described, and the said sleeve @6 has atits front end a connected disk @66, having a notch d66, and the saidsleeve a6 has mounted upon it loosely, between said worm-toothed gear@1"5 and said disk, a collar @66, having a finger d66, which enters thenotch d66 in said disk, said collar having an annular groove @16. Boththe said collars @62 and @i18 are free to be slid at suitable times, aswill be described, on the said sleeves @16 @6, and said collars andsleeves form part of a clutch to be described. The sleeve @6 is mountedloosely on a stud @6X, corresponding with the stud @5, it being held atitsV right-hand end, Figs. l and 13, in a suitable bearing in a part@41, erected upon the framework. The stud @6 is extended through asecond bearing in an extension d6 of the loom-frame. The stud @6Xreceives upon it a sleeve @16, having connected with it a chaincarryingcylinder @16, on which is' hung the shuttle-box pattern surface or chainb, it having any usual or suitable indicators, as 2, and a series ofspecial indicators b', one of said indicators being shown by full linesin Fig. 1 and by dotted lines in Fig. 9. The sleeve @16 also hasconnected with its inner end a plate h6, having at its peripherysuitable notches b1, which are adapted to be engaged by a projectionextended from a locking-lever 7, said lockinglever operating to enterany one of'said projections and prevent the overrunning of the motion ofthe sleeve @16 and pattern surface or chain b and keep it at rest whennot actuated positively. The disk h6 also has a series of spaces h5,which may be entered one or the other by the finger d66 at the end ofthe collar d66. The sleeve @16 has connected `to it at one end by aspline or key @66 (see Fig. 14a) a hand-wheel (126, and said sleeve, itsurrounding the stud @6X, is eX- tended through a hole in and takes itsbearing in the projecting arm @8, before referred to. Viewing Fig. 3 itwill be seen that the shuttle-box pattern surface or chain b hangs onthe cylinder @16 about the projecting end of the arm @6, supporting thesaid sleeve and its cylinder, and when the pattern-chain is to beremoved it may readily be drawn off bodily (see Fig. 3) from thecylinder without unfastening the chain.

The stud @5 receives upon it a sleeve d, hav-V ing detachably secured toone end thereof a IIO for the collar @38.

hand-wheel d2, said sleeve .having at its opposite end a plate or diskd3, which in all particulars is the same as the disk b3 before describedand carried at one end of the sleeve 0.16, said disk or plate d3 havinga like series of spaces in which may be entered the linger o3* of thecollar crS2 at desired times. The sleeve d also has as part of it acylinder d', (see Fig. 15,) upon which is hung the multiplyingpattern-chain cw, having at suitable intervals high links or indicators015.

The disks or plates b3 and cl3 constitute eac one half of a clutch, theother halves being the collars u32 and e038, said collars having thelingers 0,34 and 0.39, and either one of the said sleeves d or al@ maybe rotated at any desired time by simply putting the clutches intooperation, and they may be left at rest for any desired time by puttingthe clutches out of operation.

The indicators h' on the shuttle-box pattern surface or chain b controlthe movement of the clutch part to start or stop the sleeve d, carryingthe multiplying pattern surface or chain c, and the indicators 015,carried by thel chain o16 of the multiplying mechanism, control thecollar @L38 of the clutch part instrumental to start and stop the sleeveal, carrying the shuttle-box pattern surface or chain.

In the operation of the loom the indicators 2 act in the proper order tolift one or the other of a series of levers 8, having attached rods 4,connected with and to operate any usual or suitable shuttle-boX-movingmechanism-such, for instance, as represented in United States Patent No.227,667, dated May 18, 1880.

For putting into and out of operation the clutch parts referred to Ihave provided devices which I will now describe.

In a bracket c3 of the framework I have mounted a stud c2, confining itin position with a suitable set-screw cx. One end of the stud receivesupon it loosely a lever c of the rst order, said lever being bent, asshown, to present a depending extremity c', which enters the annulargroove com in the collar ass. The lever c has an upwardly-extended earc4, (see Figs. 5 and 6,) and at theside of said ear the said stud c2receives on it loosely an adjustable continuation c8 of said lever, saidcontinuation having an upwardly-extended short arm c7, provided with aslot c6, through which is extended a screw c5, which is screwed into athreaded hole in said ear c4, so that by the loosening of said screw c5the particular angles occupied by the end c of the lever c and the endof the continuation o8 may be Varied to insu re just the proper movementThe continuation a8 of the lever c has a stud 010, on which is pivoted ashoe cl2, said shoe resting immediately above the chain c1? of themultiplying mechanism in position to be struck by an indicator C15 whenit is desired to effect the clutching of the finger n35 of the collardas with the plate or disk b3 to start the sleeve o16 and chain h inmotion,

- under said shoe.

the absence of a high link or indicator 015 from under said shoe c12enabling a spring c, connected with the lever cs, to move said collarand effect the disengagement of the clutch referred to from the plate ordisk b3 and leave the shuttle-box pattern surface or chain b at rest, sothat the indicator then operative will insure that the shuttle, theposition of which is controlled by said indicator, may be thrown anydesirednumber of times. The shoe c12 is provided above its pivotal point010 with a suitable spring 10, said spring yielding whenever the stressupon the said `shoe from any accidental cause would be more than it andthe parts carryingV the shoe would bear without breaking. The stud c2alsohas mounted loosely upon it, but at its opposite end, a secondpeculiarly-shaped lever f of the first order, it having a depending endf', which enters the groove @L33 of the collar w32, and the end of thestud c2, alongside of the ear f2 of the leverf, has mounted loosely uponit an adjustable continuation f3 of the lever f, said continuationhaving a slot like the slot c6 in the part c7 of the continuation o8,the slot of said continuation f3 receiving a suitable setscrew f4, whichis inserted through said slot and screwed into the ear f2 of the leverf, said ear extending above the stud c2. The continuation f3 of theleverj' has a pivot or stud f5, upon which is mounted a shoe f6, asuitable sprin g f7 actin g on said shoe, as described of the spring 10in connection with the shoe cl2. The shoe f6 stands above and inposition tobe acted upon by the indicator h of the shuttle-box patternsurface or chain h, and when a special indicator b acts on the shoe f6the lever f is turned to cause the finger 0,34 of the clutch L32 toenter one of the like spaces b5 of the plate or disk di, fast on thesleeve Cl, carrying the chain of the multiplying mechanism, and saidchain is moved so long as said clutch is in engagement therewith, itbeing stopped whenever an indicator b' passes from The levers c and fareeach acted upon to keep their shoes in contact with theindicators formoving them by like springs 014; The levers or fingers 3 turn on a stud5, held by a screw 6 in a bearing l2. The plates or disks h3 and d3 areheld locked in place, so that they will not be moved accidentally, byprojections on usual levers 7 8, held normally in operative position byone common spring 14 connecting them.

When it is desired to change the chain b of the shuttle-box or the chainal of the multiplying mechanism for other chains having indicatorsarranged in a different order, then said chains may be easily slippedoff from the sleeves carrying them over their attached hand wheelswithout dismembering said chains.

The springs f7 and 10 referred to serve to permit the breaking of thelevers c orf whenever, by any disarrangin g of the parts,the said leversmight not be free to move, orv should either clutch stick. y

IOO

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. the worm-toothed gears a4 and c55 and their sleeves and clutch parts;but said clutch parts do not engage and rotate the sleeves (Zand ctwexcept at times, controlled by the position of theizndicators on,respectively, the chains c1G an Th'e teeth of the worm a? are ofpeculiar shape. (See Fig. `l2, where it willbe seen that the portionsmarked 30 extend circumferentially about the hub of said worm and theportions 3l are placed at a steep inclination.) The portions 30 .aredesignated as dwell portions and the portions 3l as moving portions.When the dwell portions 30, covering substantially one-half` the worm,act on a Worm-toothed gear, that gear does not rotate, but the movingportions 31 at the other half of the worm,itengaging the otherworm-toothed gear rotates it, so it will be understood that the worm a2in its rotation moves iirst one and then the other of thetwo gearsengaged by it. I have chosen this form of worm for the reason that theloom hereinsofar described is supposed to contain movable shu ttle-boXesat but one end of the lay,and the said shuttle-boxes may be moved onlyat every other pick; but should this invention be applied to a loomhaving shuttle-boxes at each end of the lay, said shuttle-boxes beingadapted to be moved at each pick, then in each instance the worm a2would have its teeth so constructed that at each rotation of` the saidWorm its teeth, in connection with the teeth of the worm-toothed gearsreferred to, would turn both of said gears for one step at eachhalf-rotation of the worm.

VI will also herein note that the shaft B is rotated, in this presentinstance of my in` vention, twice by or through the worm d', while theworm d2, as shown, operates once `either of the two worm-toothed gearsa* and (L55, such order of timing being necessary in the class of loomsherein described and having, as stated, a shuttle-box atbut one end ofthe lay.

The facility hereinbefore described for readily and easily removing thechains h and C16 without dismembering them is of very considerableimportance to a loom-fixer, as it not only saves his time, but alsoprevents any loss of the parts of the chain, provided they are notimmediately pnt togetheragain.

This invention is not limited to the exact shape of the clutch partsherein represented, and instead of the particular clutch parts I mayemploy any other usual or suitable clutch devices adapted for thepurpose.

The worm-surfaces d and a2 on the gear- Vshaft are shown as made inseparate sleeves lproperlyapplied thereto; `but this invention would notbe departed from if the said wormsurfaces were all on one sleeve, onelocated `above the other.

Having fully described my invention, what I'claimas new, and desire tosecure by Letters Patent, is-

l. In an organized loom, the following instru mentalities,viz: ashuttle-box pattern-surface.; a multiplying mechanism cooperatingtherein; a pattern-surface to determine the order of forming sheds; arotating shaft prop vided with endless screw or worm surfaces; andworm-toothed gears arranged on opposite sides of said worm-surfaces anddriven thereby to actuate the pattern-surface of the shed-formingmechanism, the shuttle-box pattern-surface, and said multiplyingmeehanism, means for rotating said shaft and a yielding clutch betweensaid means and shaft, substantially as described.

2. In aloom, ashuttle-box pattern-surface; a multiplying mechanismcoperating therewith', a pattern-surface to determine the order offorming sheds; a rotating shaft provided with endless screw or wormsurfaces; worm-toothed gears arranged on opposite sides of and driven byone of said screw or worm surfaces, and clutches intermediate the saidshuttle-box pattern-surface and multiplying mechanism and two of saidworm-toothed gears, to move said shuttle-box pattern-surface and saidmultiplying mechanism alternately, and to also move the pattern-surfaceof the shed-forming mechanism, substantially as described.

3. In a loom, the followingl instrumentalities, viz: a shuttle-boxpattern-surface; a multiplying `mechanism `coperating therewith; twoworm-toothed gears, means to enable the said worm-toothed gears toengage and turn said shuttle-box pattern-surface or the said multiplyingmechanism at desired intervals; a shaft provided with an endless screwor worm arranged between said gears constructed with a dwell and anactuating portion, to produce a dwell` alternately in the movement ofeach of said worm-toothed' gears actuated thereby for the purposessetforth.

4. In a loom, a shuttle-box pattern-surface,

ICO

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a multiplying mechanism eoperating therewith, a pattern-surface todetermine the order of forming sheds, a rotating shaft provided with aplurality of worms, one of said worms engaging a worin-toothed gear toaetuate the pattern-surface of the shed-forming mechanism; two clutches,one coperating with the shuttle-box pattern-surface and the other withthe multiplying mechanism, each having as a part thereof a worm-toothedgear, the second worm on said shaft having a dwell portion and arrangedbetween and engaging and rotating both the worm-toothed gears coperatingwith the` said clutches to move the said gears alternately,substantially as described.

5. In a loom, a shuttle-box pattern-surface, a multiplying mechanismcoperating therewith, a pattern-surface to determine the order offorming sheds, a rotating shaft provided with a plurality of worms, oneof said ISO worms engaging a worm-toothed gear to actuate thepattern-surface of the shed-formin g mechanism; and two clutches, eachhaving as a part thereof a worm-toothed gear, the second worm on saidshaft arranged between and engaging and rotating both said wormtoothedgears and the said clutches, and means to automatically move saidrotating clutches to effect the start-ing or stopping of either the saidshuttle-box pattern-surface or said multiplying mechanism atpredetermined times, substantially as described.

G. In a loom, a shuttle-box pattern-chain, means to support it, acooperating wormtoothed gear; the chain of a multiplying mechanismLmeansto support it, and a coperating worm-toothed gear; and a patternchain todetermine the order of formingsheds, a support for it, and a cooperatingwormtoothed gear, the centers about which said chains turn being out ofline; combined with a 'rotating shaft provided with a plurality ofworm-surfaces, one of said worm-surfaces engaging the worm-toothed gearcooperating with the shed-forming pattern-chain; and the other of saidWorm-surfaces engaging and rotating both the two worm-toothed gears'cooperating respectively with the shuttle-box pattern-chain and thechain of the multiplying mechanism, substantially as described.

7. In a loom, a shuttle-box pattern-chain,

a sleeve supporting it provided with a handwheel, and a coperatingWorm-toothed gear; the chain of a multiplying mechanism, and a sleeve tosupport it having a hand-wheel cooperating With it; combined with arotating shaft provided with a worm-surface between and to engage androtate both of said wormtoothed gears alternately, and clutches carriedby said worm-toothed gears and engaging at intervals the-supports ofsaid chains, substantially as described.

8. A shuttle-box pattern-chain, means to support it, a cooperatingworm-toothed wheel; the chain of a multiplying mechanism, means tosupportit,and a co peratin g worm-toothed wheel; a rotatable shaft,having a worm provided for portions of its periphery with dwell teethand with inclined teeth, the inclined teeth being a continuation of thedwell teeth, said worm occupying a position intermediate saidworm-toothed gears and engaging the teeth of the latter; clutchesintermediate said worm-toothed gears and said chain-supporting means;and two levers, each of which is acted upon by the indicators of one ofsaid pattern-chains to control the period of operation and of rest ofthe clutch coperating with the other of said pattern-chains,substantially as described.

9. In a loom, the following instrumentalities, viz: a shuttle-boxpattern-surface having a row of indicators to determine the movement ofa multiplying mechanism; a multiplying mechanism having indicators todetermine the movement of the shuttle-box pattern-surface a worm havinga dwell portion,

worm-toothed gears actuated thereby and moved alternately, andcontrolling the movement of the pattern-surface and multiplyingmechanism, clutches driven by said wormtoothed gears;mechanismintermediate said two clutches and said shu tile-boxpatternfsurface and multiplying mechanism 'whereby the shuttle-boxpattern-surface is enabled to con` trol the clutch for stopping andstarting the multiplying mechanism, and the multiplying mechanism isenabled to control the clutch for starting and stopping of theshuttle-box pattern-surface, substantially as described.

l0. The sliding collar forming part of a clutch mechanism; means forrotating said collar, a pattern-surface, and a lever intermediate saidpattern-surface. and collar, and engaging the latter, combined with ashoe pivoted on said lever and adapted to rest on Said pattern-surface,and a spring interposed between said lever and said shoe, substantiallyas described. n

ll. In a loom, a two-part power-operated shaft, a clutch intermediatesaid parts, two worm-surfaces and a bevel-gear C3, carried by the upperpart of said power-operated shaft; a shaft carrying the shed-formingpattern-chain and a worm-gear thereon operated by one of saidworm-surfaces; a sleeve having a cylinder carrying a' shuttle-boxpattern surface or chain ,means to support said sleeve; a second sleevehaving a cylinder carrying the chain of a multiplying mechanism, meansto IOO ' support said sleeve out of line with relation IIO C2 engagingthe gear C3 and adapted to be rotated by hand in either direction whenthe lower part of said power-operated shaft is held at rest and the loomstopped, whereby the upper part of said power-operated shaft and theparts actuated by its attached wormsurfaces may be turned in unison ineither direction at will, substantially as described.

12. In a loom, the following instrumentalities, viz: a shuttle boxpattern-surface, a wormtoothed gear, means connecting said gear and saidpattern-surface; a shed-forming pattern-surface to determine the orderof forming sheds, a worm-toothed gear in operative connection therewith;a rotatable shaft provided with two worm-surfaces, one of saidworm-surfaces engaging the worm-toothed gear coperatin g with theshuttle-box patternsurface being provided with dwell and inclined teeth,substantially as described, to enable said shuttle-box pattern-surfaceto be moved from one to the next series of indicators and remain atrest, the operation of the other worm-surface and worm-toothed gearcooperating with the shed-forming patternsurface to move the latter fora distance equal to two series of its indicators before the shut#t1e-boX pattern-surface is again moved,` substantially as described.

13. In a loom, the following instrumentali-` ties, viz: a shuttle-boxpattern-surface, a cooperating worm-toothed gear; a multiplyingmechanism including a Worm-toothed gear; a pattern-surface to determinethe order of forming sheds, a worm-toothed gear in operative connectiontherewith; a rotatable shaft disposed between the two first-mentionedtoothed gears and provided withv two worm-surfaces, the worm-surfacescoperating with the two toothed gears of the shuttlebox pattern-surface,and the multiplying mechanism being constructed to present dwell andinclined teeth to enable the said wormfsurfaces to move alternately thesaid two worm-toothed gears for one step to actuate the shuttle-boxpattern-surface or the multiplying mechanism alternately from one to thenext indicator of its chain, while the worm-toothed gear of thepattern-surface destructed with a dwell and active portion to` providefor a dwell alternately and successively in the rotation of each of saidWormtoothed gears; clutch-surfacesrotating with said worm-toothed gearsand each controlled by one of said pattern-surfaces, whereby one of saidsurfaces controls the movement of the clutch to start and stop the otherpattern-surl face, substantially as described.

In testimonywhereof I have signed my name to this specication in thepresence of two subscribing witnesses.

HORACE WYMAN.

Witnesses:

GEO. W. GREGORY, J. B. SYME.

